<!DOCTYPE html>
<html>
<head>
    <title>Login</title>
</head>
<body>
<h1>Login</h1>
<form action="/userLogin" method="post">
    <div>
        <label for="username">用户名:</label>
        <input type="text" id="username" name="username" required autofocus />
    </div>
    <div>
        <label for="password">密码:</label>
        <input type="password" id="password" name="password" required autofocus />
    </div>
    <button>登录</button>
</form>
</body>
</html>